Top-rated generator install pros.

Get matched with top generator install pros in Duncan, OK

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Duncan, OK?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Duncan, OK

*The Angi rating for Generator Install companies in Duncan, OK is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Duncan, OK is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on January 30, 2026

Find Generator install pros in Duncan

Avatar for OKCPowerCare
OKCPowerCare
5.0(
23
)

Serving Duncan, OK and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"We had a generator and home surge protector installed. They were prompt, polite, and efficient. They showed us how to program/use the generator, cleaned up, etc. I definitely recommend OKCPowerCare."
Generator Install
Generator Install
Response time7 hrs
Request Quote
GENERATOR SUPERCENTER
4.2(
36
)

Serving Duncan, OK and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"The electricians and plumbers were very professional in their demeanor. They worked as a team, everyone knew what to do and how to do it. They answered all my questions, but didn't let that distract them from their job. I was impressed with the speed of the installation. They cleaned up after themselves and took their trash with them."
Response time3 days
Recommended by100%of homeowners
Request Quote
Avatar for Wilford Johnson Electric Service, Inc.
Wilford Johnson Electric Service, Inc.
4.2(
19
)

Serving Duncan, OK and surrounding areas

In business since 1948

Emergency services offered

Warranties offered

"They put converted my florescent lights to LED and cleaned up very well. They were polite and did excellent work."
Response time2 days
Recommended by100%of homeowners
Request Quote
Avatar for Urner Electric
Urner Electric
4.1(
11
)

Serving Duncan, OK and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"We needed 2 ceiling fans installed, so I looked on Angie's List and sent a msg to 3 different electricians I found on here. They were the first to respond within 1-2hrs. I sent my msg on our way to church service and when it was over, I noticed they responded. They were on time, professional, and polite. I would highly recommend them and will definitely reach out to them again if we need any other electrical work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+17

Recommended by87%of homeowners
Request Quote
Avatar for Crossed Wire Electric, LLC
Crossed Wire Electric, LLC
4.1(
9
)

Serving Duncan, OK and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"Chris and his team did a amazing job🙏🤩. I had bunch of electrical issues in my house. They did everything I asked for 🥰😍. He and his team professional also polite and respectful. I am amazed how they really care for their customer. Did amazing jobs and price I can afford. I am so grateful for you guys🥰. I will call you guys again and again."
1 neighbors recently requested a quote
Request Quote
Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)

Serving Duncan, OK and surrounding areas

In business since 2003

Free estimates

Small jobs welcome

Today, we're proud to be the world's largest home improvement retailer. In 2,300 stores across North America, we aspire to excel in service – to our customers, associates, communities and shareholders. That's what leadership means to us. That's The Home Depot difference.

Generators
Generators
Generators
Generator
Generators

+5

Request Quote
Avatar for Ugle Ann Electric
Ugle Ann Electric
New to Angi

Serving Duncan, OK and surrounding areas

Free estimates

Emergency services offered

Warranties offered

I’m Trevor, a 3rd generation electrician with 25+ years of hands-on experience across residential, commercial, and industrial work. After decades of troubleshooting everything from quirky outlets to large-scale installations, I launched Ugle Ann Electric to put honesty, precision, and a little local flavor back into the trade.

Request Quote
Showing 1-10 of 17
Generator Install questions, answered by experts

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

The Duncan, OK homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

See all articles